CN109324157B - Simulated smoke preparation method and water adding device for simulated smoke test - Google Patents
Simulated smoke preparation method and water adding device for simulated smoke test Download PDFInfo
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- CN109324157B CN109324157B CN201811359085.7A CN201811359085A CN109324157B CN 109324157 B CN109324157 B CN 109324157B CN 201811359085 A CN201811359085 A CN 201811359085A CN 109324157 B CN109324157 B CN 109324157B
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- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The application discloses a simulated flue gas preparation method and a water adding device for a simulated flue gas test, wherein the method is to add water vapor and liquid water drops into the simulated flue gas to obtain the simulated flue gas containing the water vapor and the liquid water drops, and the simulated flue gas can truly simulate the components of desulfurization flue gas, so that the accuracy of a test result is improved.
Description
Technical Field
The application relates to the technical field of simulated smoke tests of power plants, in particular to a simulated smoke preparation method. The application also relates to a water adding device for the simulated smoke test.
Background
In some industrial fields, the emission of flue gas is unavoidable, in order to meet the emission standard of flue gas, the flue gas needs to be treated, and in the process of researching how to treat the flue gas, the directly obtained and discharged flue gas is inconvenient, so that the prior art adopts the preparation of simulated flue gas in a laboratory for testing, and the composition requirement of the simulated flue gas is the same as or close to that of the discharged flue gas.
The exhaust flue gas generally contains water vapor, so that the water vapor needs to be added into the simulated flue gas, and the existing device for adding the water vapor into the simulated flue gas mainly comprises the steps of injecting water into a vapor generator through a pump, evaporating the water into the water vapor through the vapor generator, and then injecting the water vapor into the simulated flue gas. However, most of water in the simulated flue gas obtained by adopting the existing device exists in the form of water vapor, and the simulated flue gas can not truly reflect the components of certain water-containing flue gas, so that the test result has deviation.
Disclosure of Invention
In view of the above, the present application aims to provide a simulated flue gas preparation method, so that the obtained simulated flue gas simulates the components of real desulfurization flue gas.
The application further aims to provide a water adding device for the simulated flue gas test based on the simulated flue gas preparation method, so that the components of the real desulfurization flue gas are simulated, and the test accuracy is improved.
In order to achieve the above purpose, the present application provides the following technical solutions:
a simulated flue gas preparation method is provided, wherein steam and liquid water drops are added into the simulated flue gas.
Preferably, in the above method for preparing simulated flue gas, the adding water vapor and liquid water droplets into the simulated flue gas specifically includes: and respectively introducing the water vapor and the liquid water drop into simulated smoke for mixing.
Preferably, in the above simulated flue gas preparation method, the water vapor is obtained by evaporation of a vapor generator or residual water vapor of a power plant is utilized.
Preferably, in the above simulated flue gas preparation method, the liquid water droplets are obtained by atomizing through a nozzle or an atomizer.
The application also provides a water adding device for the simulated smoke test, which comprises the following components:
a water source;
a first water pipe and a second water pipe in communication with the water source;
a droplet hair growth member provided on the first water pipe;
a steam generator disposed on the second water pipe;
and the liquid drop growing component and the steam generator are communicated with the gas mixing pipeline.
Preferably, in the water adding device for the simulated flue gas test, the liquid drop hair growing component is a nozzle or an atomizer.
Preferably, in the water adding device for the simulated flue gas test, the water source is a water tank.
Preferably, the water adding device for the simulated flue gas test further comprises a water pump; the inlet of the water pump is communicated with the water source, and the outlet of the water pump is communicated with the first water pipe and the second water pipe; or the first water pipe and the second water pipe are both provided with water pumps.
Preferably, in the water adding device for the simulated flue gas test, the water pump is a metering pump.
Preferably, in the water adding device for a simulated flue gas test, the water adding device further comprises a first flowmeter arranged on the first water pipe and a second flowmeter arranged on the second water pipe.
Compared with the prior art, the application has the beneficial effects that:
according to the simulated flue gas preparation method provided by the application, steam and liquid water drops are added into the simulated flue gas, and the power plant desulfurization flue gas not only contains the steam but also contains the liquid water drops, so that the flue gas obtained by the simulated flue gas preparation method provided by the application can truly simulate the components of the desulfurization flue gas.
According to the water adding device for the simulated flue gas test, the liquid drop hair growing component on the first water pipe converts water in the water source into liquid water drops, the steam generator on the second water pipe converts the water in the water source into steam, and the liquid water drops and the steam enter the gas mixing pipeline and are mixed with the simulated flue gas. The water adding device of the application adds water vapor and liquid water drops into the simulated flue gas, so that the obtained flue gas can truly simulate the components of the desulfurization flue gas, and the accuracy of test results is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a water adding device for a simulated smoke test according to an embodiment of the present application;
wherein 1 is a water tank, 2 is a water pump, 3 is a first flowmeter, 4 is a first water pipe, 5 is a droplet growing component, 6 is a gas mixing pipeline, 7 is a steam generator, 8 is a second water pipe, and 9 is a second flowmeter.
Detailed Description
The core of the application is to provide a simulated flue gas preparation method, so that the obtained simulated flue gas can simulate the components of real desulfurization flue gas.
The application also provides a water adding device for the simulated flue gas test based on the simulated flue gas preparation method, which can simulate the components of the real desulfurization flue gas and improve the test accuracy.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The water in the simulated flue gas obtained by the prior art exists in the form of water vapor, when the simulated flue gas test is carried out, the test result is deviated from the test result of the real desulfurization flue gas, and the research shows that the desulfurization flue gas contains liquid droplets besides water vapor, and the conventional equipment cannot enable the simulated flue gas to contain the liquid droplets.
Therefore, the embodiment of the application provides a simulated smoke preparation method, wherein steam and liquid water drops are added into simulated smoke. The simulated flue gas containing water vapor and liquid water drops can truly simulate the components of the desulfurization flue gas, so that the accuracy of test results is improved. In addition, the addition of liquid water drops can achieve the effect of regulating and controlling the temperature of the flue gas to a certain extent.
Further, in the present embodiment, adding water vapor and liquid water droplets to the simulated flue gas is specifically: directly and respectively and independently introducing the water vapor and the liquid water drop into a gas mixing pipeline to be mixed with the simulated flue gas. Thereby the water vapor and the liquid water drop are uniformly mixed with the simulated smoke, and the water vapor is prevented from condensing into water drops in advance.
In the present embodiment, the steam is obtained by the steam generator 7 or the surplus steam of the power plant is utilized, so long as the steam can be obtained, and the surplus steam of the power plant can be utilized to save energy.
In the present embodiment, the liquid water droplets are atomized by the nozzle or the atomizer, and a large amount of liquid water droplets can be obtained rapidly by the nozzle or the atomizer.
As shown in fig. 1, based on the simulated flue gas preparation method described in any of the above embodiments, the embodiment of the present application further provides a water adding device for a simulated flue gas test, which is hereinafter referred to as a water adding device, and includes a water source, a first water pipe 4, a second water pipe 8, a droplet growing component 5, a vapor generator 7, and a gas mixing pipe 6. Wherein, the first water pipe 4 and the second water pipe 8 are communicated with a water source; the liquid drop growing part 5 is arranged on the first water pipe 4, the steam generator 7 is arranged on the second water pipe 8, and the liquid drop growing part 5 and the steam generator 7 are communicated with the gas mixing pipeline 6.
The water adding device divides a water source into two paths through a first water pipe 4 and a second water pipe 8, water in the first water pipe 4 generates liquid water drops through a liquid drop hair growing component 5, water in the second water pipe 8 generates water vapor through a vapor generator 7, and the liquid water drops and the water vapor are added into a gas mixing pipeline 6 to be mixed with simulated flue gas; the simulated flue gas obtained after mixing can truly simulate the components of the desulfurization flue gas, so that the accuracy of the test result is improved. In addition, the addition of liquid water drops can achieve the effect of regulating and controlling the temperature of the flue gas to a certain extent.
Further, in the present embodiment, the droplet growing section 5 is a nozzle or an atomizer, through which a large amount of liquid water droplets can be rapidly generated, and the size of the liquid water droplets can be changed according to actual needs.
In the present embodiment, the steam generator 7 may be an electrically heated evaporator or a boiler heated evaporator as long as it is capable of generating steam.
In this embodiment, the water source is the water tank 1, which is convenient for storing and sealing, and of course, the water source can be water in the water supply pipeline.
As shown in fig. 1, in the present embodiment, the water adding device further includes a water pump 2; the inlet of the water pump 2 is communicated with a water source, the outlet of the water pump 2 is communicated with the first water pipe 4 and the second water pipe 8, namely the water pump 2 is communicated with the water source firstly, and then the water pump 2 is communicated with the first water pipe 4 and the second water pipe 8 through a three-way valve; or the first water pipe 4 and the second water pipe 8 are respectively provided with the water pump 2, namely the first water pipe 4 and the second water pipe 8 are directly communicated with a water source, and the first water pipe 4 and the second water pipe 8 are respectively and independently provided with the water pump 2. When the water source is the water tank 1, the water in the water tank 1 is pumped into the first water pipe 4 and the second water pipe 8 through the water pump 2. Of course, the water may flow into the first water pipe 4 and the second water pipe 8 by the self weight of the water without providing a water pump.
Further, in the present embodiment, the water pump 2 is a metering pump, and the amount of water pumped by the metering pump is controlled to improve the accuracy of adding the water in the simulated flue gas.
Still further, in this embodiment, the water adding device further includes a first flowmeter 3 disposed on the first water pipe 4 and a second flowmeter 9 disposed on the second water pipe 8, and the water amounts in the first water pipe 4 and the second water pipe 8 are detected by the first flowmeter 3 and the second flowmeter 9 respectively, so as to control the contents of liquid water droplets and water vapor respectively, improve the content accuracy of the liquid water droplets and water vapor in the simulated flue gas, and accurately simulate the components of the desulfurization gas.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A preparation method of simulated smoke is applied to a water adding device for a simulated smoke test and is characterized in that,
the water adding device for the simulated flue gas test comprises:
a water source;
a first water pipe (4) and a second water pipe (8) in communication with the water source;
a droplet hair growth member (5) provided on the first water pipe (4);
a steam generator (7) provided on the second water pipe (8);
a gas mixing pipe (6), the droplet growing part (5) and the steam generator (7) being both in communication with the gas mixing pipe (6);
the simulated flue gas preparation method comprises the following steps: adding water vapor and liquid water drops into simulated flue gas, dividing a water source into two paths through a first water pipe (4) and a second water pipe (8), enabling water in the first water pipe (4) to pass through a liquid drop growing component (5) to generate the liquid water drops, enabling water in the second water pipe (8) to pass through a vapor generator (7) to generate the water vapor, and adding the liquid water drops and the water vapor into a gas mixing pipeline (6) to be mixed with the simulated flue gas to obtain the mixed simulated flue gas.
2. A simulated smoke production method as claimed in claim 1, wherein said droplet-generating means (5) is a nozzle or atomizer.
3. A simulated smoke production method as claimed in claim 1, wherein said water source is a water tank (1).
4. A simulated smoke production method as claimed in claim 1, further comprising a water pump (2); the inlet of the water pump (2) is communicated with the water source, and the outlet of the water pump (2) is communicated with the first water pipe (4) and the second water pipe (8); or the first water pipe (4) and the second water pipe (8) are both provided with a water pump (2).
5. A simulated smoke production method as claimed in claim 4, wherein said water pump (2) is a metering pump.
6. A simulated smoke production method as claimed in claim 1, further comprising a first flowmeter (3) provided on said first water pipe (4) and a second flowmeter (9) provided on said second water pipe (8).
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| CN201811359085.7A CN109324157B (en) | 2018-11-15 | 2018-11-15 | Simulated smoke preparation method and water adding device for simulated smoke test |
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| CN201811359085.7A CN109324157B (en) | 2018-11-15 | 2018-11-15 | Simulated smoke preparation method and water adding device for simulated smoke test |
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| CN109324157B true CN109324157B (en) | 2023-08-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111220775B (en) * | 2020-01-20 | 2023-02-17 | 中国特种设备检测研究院 | Saturated or supersaturated flue gas moisture content measurement calibrating device |
| CN111811693B (en) * | 2020-07-09 | 2021-10-29 | 华电电力科学研究院有限公司 | Automatic calibration method for standard platinum resistance thermometer |
| CN114544870A (en) * | 2022-02-10 | 2022-05-27 | 中国华能集团清洁能源技术研究院有限公司 | Absorbent performance detection device |
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